fo4s.net - robtex.com
fo4s.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3030::ac43:a5b6🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3031::6815:b5d🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.11.93Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.165.182🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | donald.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3b9e🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | donald.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c19e🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | donald.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:219e🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | donald.ns.cloudflare.com | ||||||
| A | 108.162.193.158🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | donald.ns.cloudflare.com | ||||||
| A | 172.64.33.158🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | donald.ns.cloudflare.com | ||||||
| A | 173.245.59.158🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | donald.ns.cloudflare.com | ||||||
| NS | ulla.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3ae9🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ulla.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0e9🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | ulla.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20e9🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | ulla.ns.cloudflare.com | ||||||
| A | 108.162.192.233🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ulla.ns.cloudflare.com | ||||||
| A | 172.64.32.233🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ulla.ns.cloudflare.com | ||||||
| A | 173.245.58.233🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ulla.ns.cloudflare.com | ||||||
| TXT | google-site-verification=COHwoZF6IOZDRlvGKzI4KzNfI0L0q3TSByEG9i4CcIs | ||||||
| TXT | google-site-verification=IpDIgeSoa2eOFW5cBOL2u1r6gR5eaUCzuwLRWm9sszo | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.11.93, 172.67.165.182 | ||||||
| IPv6 hints | 2606:4700:3030::ac43:a5b6, 2606:4700:3031::6815:b5d | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=239, name=cloudflare-ech.com | ||||||
| SOA | donald.ns.cloudflare.comdns@cloudflare.com serial=2399698044 | ||||||
net
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1775959662 | ||||||
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSdonald.ns.cloudflare.com2026-03-23 → 2026-04-12 · 2 obs
● 2026-04-12 02:19:14
●NSulla.ns.cloudflare.com2026-03-23 → 2026-04-12 · 2 obs
● 2026-04-12 02:19:14
●A104.21.11.932026-03-23 → 2026-04-12 · 2 obs
● 2026-04-12 02:19:14
●A172.67.165.1822026-03-23 → 2026-04-12 · 2 obs
● 2026-04-12 02:19:14
●A2606:4700:3030::ac43:a5b62026-03-23 → 2026-04-12 · 2 obs
● 2026-04-12 02:19:14
●A2606:4700:3031::6815:b5d2026-03-23 → 2026-04-12 · 2 obs
● 2026-04-12 02:19:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| fo4s.net | donald.ns.cloudflare.com, ulla.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.58.233
NS records: donald.ns.cloudflare.com, ulla.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for fo4s.net (unsigned zone)
⏱️ Timing
Total: 276ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.11.93, 172.67.165.182 |
| AAAA | 2 | 2606:4700:3030::ac43:a5b6, 2606:4700:3031::6815:b5d |
| NS | 2 | donald.ns.cloudflare.com, ulla.ns.cloudflare.com |
| TXT | 2 | google-site-verification=COHwoZF6IOZDRlv, google-site-verification=IpDIgeSoa2eOFW5 |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | donald.ns.cloudflare.com dns.cloudflare. |
Analysis
IP Addresses
fo4s.net points to four IP numbers: 2606:4700:3030::ac43:a5b6, 2606:4700:3031::6815:b5d, 104.21.11.93 and 172.67.165.182.
For instance, other host names viaggioversolavoce.it, fmx1.rixc.lv, www.defly.io, kkreea.cn and broadwaybankfbrc.biz share IP numbers with fo4s.net.
Name Servers
fo4s.net is delegated to two name servers: donald.ns.cloudflare.com and ulla.ns.cloudflare.com.
fo4s.net uses the same name server setup as other domains such as centertutor.com, eduference.com, moodle.university, pacificsec.com.br and pacificsec.com.
fo4s.net shares name servers with other domains at least partially, for example epfash.xyz, donhonclub.com, unkybill-it.com, coffeespace.com and trellobot.xyz.
These name servers are commonly used with the name servers magnolia.ns.cloudflare.com and clay.ns.cloudflare.com.
Host names with six IP numbers: host name donald.ns.cloudflare.com points to: 2606:4700:58::adf5:3b9e, 2803:f800:50::6ca2:c19e, 2a06:98c1:50::ac40:219e, 108.162.193.158, 172.64.33.158 and 173.245.59.158; host name ulla.ns.cloudflare.com points to: 2606:4700:50::adf5:3ae9, 2803:f800:50::6ca2:c0e9, 2a06:98c1:50::ac40:20e9, 108.162.192.233, 172.64.32.233 and 173.245.58.233.